28427056018 has 8 divisors (see below), whose sum is σ = 43632225648. Its totient is φ = 13882980804.

The previous prime is 28427056003. The next prime is 28427056037. The reversal of 28427056018 is 81065072482.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165273496 + ... + 165273667.

It is an arithmetic number, because the mean of its divisors is an integer number (5454028206).

Almost surely, 2^28427056018 is an apocalyptic number.

28427056018 is a deficient number, since it is larger than the sum of its proper divisors (15205169630).

28427056018 is a wasteful number, since it uses less digits than its factorization.

28427056018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330547208.

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 28427056018 in words is "twenty-eight billion, four hundred twenty-seven million, fifty-six thousand, eighteen".